Electrochemical characterization of mixed conducting and composite SOFC cathodes

被引：35

作者：

Bebelis, S. ^{[1
]}

Kotsionopoulos, N.

Mai, A.

Rutenbeck, D.

Tietz, F.

机构：

[1] Univ Patras, Dept Chem Engn, GR-26504 Patras, Greece

[2] Forschungszentrum Julich, Inst Mat & Proc Energy Syst IWV 1, D-52425 Julich, Germany

来源：

SOLID STATE IONICS | 2006年 / 177卷 / 19-25期

关键词：

cathodes; composite electrodes; mixed conductors; perovskites; solid oxide fuel cells;

D O I：

10.1016/j.ssi.2006.05.041

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 [物理化学]; 081704 [应用化学];

摘要：

The electrochemical performance of La0.58Sr0.4Co0.2Fe0.8O3-delta (L58SCF), La0.9Sr1.1FeO4-6 (LS2F) and LSM (La0.65Sr0.3MnO3-delta)/LSM-YSZ (50 wt.% LSM-50 wt.% ZrO2 (8 mol% Y2O3)) cathode electrodes interfaced to a double layer Ce0.8Gd0.2O2-delta (CGO)/YSZ electrolyte was studied in the temperature range of 600 to 850 degrees C and under flow of 21% O-2/He mixture, using impedance spectroscopy and current density-overpotential measurements. The L58SCF cathode exhibited the highest electrocatalytic activity for oxygen reduction, according to the order: LS2F/CGO/YSZ <= LSM/LSM-YSZ/CGO/YSZ < L58SCF/CGO/YSZ. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：1843 / 1848

页数：6

共 32 条

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